Finding the Fourth Proportional to 853,432.16, 1,177,772.16 and 490,856.12
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Solution
The fourth proportional to 853,432.16, 1,177,772.16 and 490,856.12 is: 677,402.02
Step by Step Solution
- Step 1: Write the proportion equation
853,432.16 : 1,177,772.16 = 490,856.12 : x - Step 2: Convert to fraction form
853,432.16/1,177,772.16 = 490,856.12/x - Step 3: Cross multiply
853,432.16x = 1,177,772.16 × 490,856.12 - Step 4: Simplify right side
853,432.16x = 578,116,672,701.62 - Step 5: Solve for x
x = 578,116,672,701.62/853,432.16 - Step 6: Final answer
x = 677,402.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.